Re: inline 250 with 373 posi???
If your truck came from the factory with a 6 cylinder engine (check the spid)....
then you already have the 3:73 diff.
If your truck had come with a V-8 then your truck came from the factory with a 3:07 diff.
All Good
Coley
__________________
....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL
1966 Chevy 1/2 ton (Florida- Red/white)
1972 Chevy 1/2 ton (California- Blue/white)
2005 Chevy Silverado HD2500/Duramax
2000 Dodge Ram 1500
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